| Countries of the World Quiz | 0 | - | 5.00 | 47,428,494 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 103,060 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 406,009 |
| UNESCO World Heritage Countries | 0 | - | 4.98 | 135,775 |
| Countries with the Most Airports | 0 | - | 4.96 | 98,795 |
| Countries with Most Tourists with Exceptions | 0 | - | 4.97 | 125,407 |
| Five Countries With the Most Tourists by Continent | 0 | - | 4.95 | 121,228 |
| Airlines by Country | 0 | - | 4.52 | 135,342 |
| Landlocked Countries | 0 | - | 4.99 | 420,075 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,328,305 |
| Countries by Emojis | 0 | - | 4.99 | 239,573 |
| Countries With One Word And Two O's | 0 | - | 4.92 | 55,888 |
| Countries Whose Airlines Carried the Most Passengers | 0 | - | 4.94 | 72,374 |
| Regions of Countries #1 | 0 | - | 4.96 | 159,496 |
| Regions of Countries #2 | 0 | - | 4.95 | 123,841 |
| Regions of Countries #3 | 0 | - | 4.85 | 90,702 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,764,906 |
| Sahara Desert Countries | 0 | - | 4.98 | 163,507 |
| Himalayan Countries | 0 | - | 4.95 | 137,920 |
| Andean Countries | 0 | - | 4.95 | 84,179 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,395 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 125,004 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,045 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,492 |
| Danube Countries | 0 | - | 4.97 | 71,781 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,719 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,175 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,876 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,010 |
| European Landlocked Countries | 0 | - | 4.99 | 146,915 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,307 |
| Countries with the Most Species | 0 | - | 4.99 | 103,053 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,458 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,473 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,640 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,407 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,089 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,479 |
| Countries in the Alps | 0 | - | 4.87 | 117,901 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 98,028 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,620 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,513 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,399 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,248 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,807 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,413 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,295 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,046 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,663 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,549 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,391 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,023 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,316 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,324 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,451 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,143 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,652 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,726 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 242,962 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,545 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,073 |
| Largest Countries By Category | 0 | - | 4.97 | 157,851 |
| Countries by Countries | 0 | - | 4.97 | 62,963 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,399 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,196 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,458 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 329,969 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,934 |
| Island Countries | 0 | - | 4.99 | 710,228 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,047,406 |
| Northernmost Countries | 0 | - | 4.99 | 361,048 |
| Foods by Country of Origin #1 | 0 | - | 4.41 | 336,585 |
| Mountains by Country | 0 | - | 4.56 | 81,766 |
| Countries of South America | 0 | - | 5.00 | 924,546 |
| Countries of Oceania | 0 | - | 5.00 | 1,053,415 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,870,572 |
| "Land" Countries | 0 | - | 4.98 | 336,099 |
| Resort Towns by Country | 0 | - | 4.30 | 40,015 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 135,246 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,084 |
| Countries with the Most McDonald's Locations | 0 | - | 4.83 | 110,735 |
| Biggest Countries with No McDonald's | 0 | - | 4.84 | 89,444 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,378,603 |
| Countries by Initial Letter and Continent #3 | 0 | - | 4.93 | 48,651 |
| Countries by Initial Letter and Continent #2 | 0 | - | 4.91 | 96,176 |
| Flag Carrier Airlines | 0 | - | 4.19 | 50,762 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 118,317 |
| Largest Countries with Little Tourism | 0 | - | 4.70 | 61,745 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,368 |
| Countries with Megacities | 0 | - | 4.99 | 262,967 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,199 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,182 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,503 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,220 |
| Countries by Official Language | 0 | - | 4.95 | 194,863 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,843 |
| Countries in their Native Language | 0 | - | 4.99 | 198,406 |
| Independence from Whom | 0 | - | 4.99 | 211,623 |
| Subdivisions by Country | 0 | - | 4.86 | 50,342 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,917 |
| Megadiverse Countries | 0 | - | 4.96 | 134,851 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,735 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,237 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,822 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,053 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,860 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,459 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,154 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,914 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,546 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,031 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,278 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,782 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,066 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,848 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,230 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,401 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 110,552 |
| World Map Quiz | 0 | - | 4.81 | 64,798 |
| Countries that Produce the Most Beer | 0 | - | 4.85 | 130,655 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 156,204 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,157 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,722 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 105,058 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,778 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,675 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,662 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,797 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,936 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,337 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,401 |
| Widest Countries East to West | 0 | - | 4.92 | 129,467 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,410 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,116 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,043 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,608 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,374 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,670 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,293 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,753 |
| Companies by Country | 0 | - | 4.61 | 119,605 |
| Inventions by Country #1 | 0 | - | 4.47 | 55,029 |
| Countries with Double Letters | 0 | - | 4.97 | 95,320 |
| Countries that End in N | 0 | - | 4.95 | 170,356 |
| Countries with Five Letters | 0 | - | 4.96 | 281,196 |
| Countries with Six Letters | 0 | - | 4.94 | 212,763 |
| Countries with W | 0 | - | 4.97 | 159,679 |
| Countries with Z | 0 | - | 4.98 | 290,576 |
| Countries with Letters Missing | 0 | - | 4.96 | 185,948 |
| Countries That End in U | 0 | - | 4.95 | 120,503 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,952 |
| Countries that End in O | 0 | - | 4.92 | 159,275 |
| Countries that End in R | 0 | - | 4.87 | 118,795 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,561 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,564 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,296 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,198 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,799 |
| Countries That End in Y | 0 | - | 4.91 | 185,703 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,480 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,577 |
| Countries that End in I | 0 | - | 4.94 | 134,934 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 183,688 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,654 |
| Countries That End in NIA | 0 | - | 4.92 | 109,603 |
| Countries That End in BIA | 0 | - | 4.93 | 148,961 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,860 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,184 |
| Countries That End in RIA | 0 | - | 4.93 | 126,619 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,751 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 227,023 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,383 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,770 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,307 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,399 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,773 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,353 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,266 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,270 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 53,683 |
| Countries that End in L | 0 | - | 4.94 | 156,632 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 214,638 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,186 |
| City to Country Quiz #1 | 0 | - | 4.97 | 155,902 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,807 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,859 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 249,054 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 200,354 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 142,769 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 163,280 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 224,786 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 152,675 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 71,006 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,635 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,747 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 260,813 |
| Name a Valid Asian Country | 0 | - | 4.98 | 120,958 |
| Name a Valid African Country | 0 | - | 4.98 | 154,022 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,445,126 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 380,188 |
